نتایج جستجو برای: delay line tdl

تعداد نتایج: 535104  

Journal: :IEICE Transactions 2006
Tomohiko Taniguchi Huy Hoang Pham Xuan Nam Tran Yoshio Karasawa

This paper presents a simple method to determine weights of single carrier multiple input multiple output (MIMO) broadband communication systems adopting tapped delay line (TDL) structure in receiver side for the effective communication under frequency selective fading (FSF) environment. First, assuming the perfect knowledge of the channel matrix in both arrays, an iterative design method of tr...

Journal: :Drones 2023

Non-terrestrial network (NTN) systems can offer wide area coverage for applications requiring high mobility, which is expected in the sixth generation (6G) of telecommunication systems. This paper proposes a high-mobility support system based on 5G-NR physical layer components NTN connectivity. In this paper, we propose optimization numerologies and impact various modulation coding schemes (MCS...

2014
Chaoying Bao

The need to extract a single audio signal of interest from a multi-source and noisy environment is common across many disciplines. Adaptive beamforming, due to its superior interference rejection and noise suppression, is a preferred processing technique for obtaining high quality audio in noisy environments. In a previous study, we have examined the performance of two classes of adaptive beamf...

2015
Ali Vahdat Jillian Morgan Andrew R. McIntyre Malcolm I. Heywood A. Nur Zincir-Heywood

Streaming data classification requires that a model be available for classifying stream content while simultaneously detecting and reacting to changes to the underlying process generating the data. Given that only a fraction of the stream is ‘visible’ at any point in time (i.e. some form of window interface) then it is difficult to place any guarantee on a classifier encountering a ‘well mixed’...

2001
Kazunori HAYASHI

This paper proposes a spatio-temporal equalization method, which employs a cascade configuration of an adaptive array and a decision feedback equalizer (DFE). With the configuration, the proposed equalizer requires small number of weights, and hence, low computational complexity, however, it has to pay a price for the simplicity, namely, noise enhancement due to high sidelobe levels in certain ...

2004
Guido Menkhaus Michael Holzmann

Distributed real-time control applications consist of sets of tasks that interact with the physical world through sensors and actuators and are executed on a dispersed set of locations that are interconnected by a communication subsystem. Timeliness and safety requirements of the application demand deterministic execution of tasks and predictive communication. Deterministic and predictable syst...

Journal: :IEEE Transactions on Aerospace and Electronic Systems 2021

We develop sparse array receive beamformer design methods achieving maximum signal-to-interference plus noise ratio (MaxSINR) for wideband sources and jammers. Both tapped delay line (TDL) filtering the DFT realizations to processing are considered. The sparsity stems from limited number of available RF transmission chains that switch between sensors, thereby configuring different arrays at tim...

2004
Wolfgang Pree Gerald Stieglbauer Josef Templ

The paper first presents the integration options of what we call the Timing Description Language (TDL) with MathWorks' Simulink tools. Based on the paradigm of logical execution time (LET) as introduced by Giotto [2], TDL enhances Giotto towards a component architecture for real-time control applications [9]. The challenge is to provide appropriate visual and interactive modeling capabilities s...

2000
Anastasios D. Doulamis Nikolaos D. Doulamis Stefanos D. Kollias

In this paper, a neural network scheme is presented for modeling VBR MPEG-2 video sources. In particular, three non linear autoregressive models (NAR) are proposed to model the aggregate MPEG-2 video sequence, each of which corresponds to one of the three types of frames (I, P and B frames). Then, the optimal mean-squared error predictor of the NAR model is implemented using a feedforward neura...

Journal: :The Journal of Experimental Medicine 1973
J. Sprent J. F. A. P. Miller

When thoracic duct lymphocytes (TDL) from mice given sheep erythrocytes (SRC) 1 day previously (1-day-primed TDL) were placed in microcultures with antigen for 5-6 days, the cells failed to produce antibody to SRC, but responded well to horse erythrocytes (HRC); reciprocal results were obtained with TDL from HRC-injected mice. The specific unresponsiveness of the TDL was observed despite the pr...

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